Test Report Part 1

FCC ID: JEH7710GA2

Test Report

Download: PDF

FCCID_48655

NCR Corporation
FCC Part 15, Certification Application
Class 7710

July 14, 1999

MEASUREMENT/TECHNICAL REPORT

COMPANY NAME: NCR Corporation

MODEL: 7710

FCC ID: JEH7710GA2

DATE: July 14, 1999

This report concerns (check one): Original grant
Class II change__X__

Equipment type:

Deferred grant requested per 47 CFR 0.457(d)(1)(ii)? yes_____ No X

If yes, defer until:_________________
date

N.A. agrees to notify the Commission by N.A.
date
of the intended date of announcement of the product so that the grant can be issued
on that date.

Report prepared by:

United States Technologies, Inc.
3505 Francis Circle
Alpharetta, GA 30004

Phone Number: (770) 740-0717
Fax Number: (770) 740-1508

FCC ID: JEH7710GA2

TABLE OF CONTENTS

AGENCY AGREEMENT
LETTER OF CONFIDENTIALITY

SECTION 1

GENERAL INFORMATION

1.1 Product Description
1.2 Related Submittal(s)

SECTION 2

TESTS AND MEASUREMENTS

2.1 Configuration of Tested EUT
2.2 Test Facility
2.3 Test Equipment
2.4 Modifications
2.5 Test Procedure and Results
2.6 Antenna Description
2.7 Peak Power (Antenna Conducted at Antenna Terminal)
2.8 Antenna Conducted Spurious Emissions
2.9 Peak Radiated Spurious Emissions
2.10 Average Radiated Spurious Emissions
2.11 20 dB Bandwidth
2.12 Number of Hopping Channels
2.13 Average Time of Occupancy per Channel
2.14 Power Line Conducted Emissions for Transmitter
2.15 Radiated Emissions for Digital Device & Receiver (if Applicable)
2.16 Power Line Conducted for Digital Device & Receiver (if Applicable)

SECTION 3

LABELING INFORMATION

SECTION 4

BLOCK DIAGRAM(S)/ SCHEMATIC(S)

SECTION 5

PHOTOGRAPHS

SECTION 6

THOERY OF OPERATION

SECTION 7

USER'S MANUAL

FCC ID: JEH7710GA2

LIST OF FIGURES AND TABLES

FIGURES

1) Test Configuration
2) Photograph(s) for Spurious, Digital Device, and Conducted Emissions
3) Peak Power
4) Conducted Spurious Emissions
5) Peak Radiated Spurious Emissions
6) Average Radiated Spurious Emissions
7) 20 dB Bandwidth
8) Number of Hopping Channels
9) Average Time of Occupancy per Channel

TABLES

1) EUT and Peripherals
2) Test Instruments
3) Peak Power Output
4) Peak Radiated Spurious Emissions
5) Average Radiated Spurious Emissions
6) 20 dB Bandwidth
7) Number of Hopping Channels
8) Average Time of Occupancy per Channel
9) Power Line Conducted Emissions for Transmitter
10) Radiated Emissions for Digital Device and Receiver
11) Power Line Conducted Emissions for Digital Device and Receiver

FCC ID: JEH7710GA2

SECTION 1

GENERAL INFORMATION

FCC ID: JEH7710GA2

GENERAL INFORMATION

1.1 Product Description

The Equipment Under Test (EUT) is a NCR Corporation, Class 7710 price label
system. The system consists of the following components:

1) Computer (remote location)
2) Communications Base Station (CBS II)
with 1 transmit antenna, 4 receive antennas, and power supply
3) Shelf Label Tags (remote location)

Each system component is not considered to be located near the other.

The system is designed to operate on the following channels:

Fundamental Channel 2.415919502 227 2.431721306 281
Frequency (GHz) Number
2.416212128 228 2.432013932 282
2.400410324 174
2.416504754 229 2.432306558 283
2.40070295 175
2.41679738 230 2.432599184 284
2.400995576 176
2.417090006 231 2.43289181 285
2.401288202 177
2.417382632 232 2.433184436 286
2.401580828 178
2.417675258 233 2.433477062 287
2.401873454 179
2.417967884 234 2.433769688 288
2.40216608 180
2.41826051 235 2.434062314 289
2.402458706 181
2.418553136 236 2.43435494 290
2.402751332 182
2.418845762 237 2.434647566 291
2.403043958 183
2.419138388 238 2.434940192 292
2.403336584 184
2.419431014 239 2.435232818 293
2.40362921 185
2.41972364 240 2.435525444 294
2.403921836 186
2.420016266 241 2.43581807 295
2.404214462 187
2.420308892 242 2.436110696 296
2.404507088 188
2.420601518 243 2.436403322 297
2.404799714 189
2.420894144 244 2.436695948 298
2.40509234 190
2.42118677 245 2.436988574 299
2.405384966 191
2.421479396 246 2.4372812 300
2.405677592 192
2.421772022 247 2.437573826 301
2.405970218 193
2.422064648 248 2.437866452 302
2.406262844 194
2.422357274 249 2.438159078 303
2.40655547 195
2.4226499 250 2.438451704 304
2.406848096 196
2.422942526 251 2.43874433 305
2.407140722 197
2.423235152 252 2.439036956 306
2.407433348 198
2.423527778 253 2.439329582 307
2.407725974 199
2.423820404 254 2.439622208 308
2.4080186 200
2.42411303 255 2.439914834 309
2.408311226 201
2.424405656 256 2.44020746 310
2.408603852 202
2.424698282 257 2.440500086 311
2.408896478 203
2.424990908 258 2.440792712 312
2.409189104 204
2.425283534 259 2.441085338 313
2.40948173 205
2.42557616 260 2.441377964 314
2.409774356 206
2.425868786 261 2.44167059 315
2.410066982 207
2.426161412 262 2.441963216 316
2.410359608 208
2.426454038 263 2.442255842 317
2.410652234 209
2.426746664 264 2.442548468 318
2.41094486 210
2.42703929 265 2.442841094 319
2.411237486 211
2.427331916 266 2.44313372 320
2.411530112 212
2.427624542 267 2.443426346 321
2.411822738 213
2.427917168 268 2.443718972 322
2.412115364 214
2.428209794 269 2.444011598 323
2.41240799 215
2.42850242 270 2.444304224 324
2.412700616 216
2.428795046 271 2.44459685 325
2.412993242 217
2.429087672 272 2.444889476 326
2.413285868 218
2.429380298 273 2.445182102 327
2.413578494 219
2.429672924 274 2.445474728 328
2.41387112 220
2.42996555 275 2.445767354 329
2.414163746 221
2.430258176 276 2.44605998 330
2.414456372 222
2.430550802 277 2.446352606 331
2.414748998 223
2.430843428 278 2.446645232 332
2.415041624 224
2.431136054 279 2.446937858 333
2.41533425 225
2.43142868 280 2.447230484 334
2.415626876 226

FCC ID: JEH7710GA2

2.44752311 335 2.47239632 420
2.447815736 336 2.472688946 421
2.448108362 337 2.472981572 422
2.448400988 338 2.473274198 423
2.448693614 339 2.473566824 424
2.44898624 340 2.47385945 425
2.449278866 341 2.474152076 426
2.449571492 342 2.474444702 427
2.449864118 343 2.474737328 428
2.450156744 344 2.475029954 429
2.45044937 345 2.47532258 430
2.450741996 346 2.475615206 431
2.451034622 347 2.475907832 432
2.451327248 348 2.476200458 433
2.451619874 349 2.476493084 434
2.4519125 350 2.47678571 435
2.452205126 351 2.477078336 436
2.452497752 352 2.477370962 437
2.452790378 353 2.477663588 438
2.453083004 354 2.477956214 439
2.45337563 355 2.47824884 440
2.453668256 356 2.478541466 441
2.453960882 357 2.478834092 442
2.454253508 358 2.479126718 443
2.454546134 359 2.479419344 444
2.45483876 360 2.47971197 445
2.455131386 361 2.480004596 446
2.455424012 362 2.480297222 447
2.455716638 363 2.480589848 448
2.456009264 364 2.480882474 449
2.45630189 365 2.4811751 450
2.456594516 366 2.481467726 451
2.456887142 367 2.481760352 452
2.457179768 368 2.482052978 453
2.457472394 369 2.482345604 454
2.45776502 370 2.48263823 455
2.458057646 371 2.482930856 456
2.458350272 372 2.483223482 457
2.458642898 373
2.458935524 374
2.45922815 375
2.459520776 376
2.459813402 377
2.460106028 378
2.460398654 379
2.46069128 380
2.460983906 381
2.461276532 382
2.461569158 383
2.461861784 384
2.46215441 385
2.462447036 386
2.462739662 387
2.463032288 388
2.463324914 389
2.46361754 390
2.463910166 391
2.464202792 392
2.464495418 393
2.464788044 394
2.46508067 395
2.465373296 396
2.465665922 397
2.465958548 398
2.466251174 399
2.4665438 400
2.466836426 401
2.467129052 402
2.467421678 403
2.467714304 404
2.46800693 405
2.468299556 406
2.468592182 407
2.468884808 408
2.469177434 409
2.46947006 410
2.469762686 411
2.470055312 412
2.470347938 413
2.470640564 414
2.47093319 415
2.471225816 416
2.471518442 417
2.471811068 418
2.472103694 419

FCC ID: JEH7710GA2

1.2 Related Submittal(s)/Grant(s)

The EUT will be used with part of a system to send/receive data. The system is
functionally equivalent to a previously certified system which was granted on 02/10/1998
under FCC ID: JEH7710GA2. The Communications Base Station (CBS II) portion of the
product has been redesigned for cost reductions purposes. NCR is submitting this
application as a permissive change to the earlier certified system.

The EUT is subject to the following authorizations:

a) Permissive Change to earlier certification of FCC ID: JEH7710GA2

The information contained in this report is presented for the certification (transmitter) &
verification (digital device) authorization(s) for the EUT.

FCC ID: JEH7710GA2

SECTION 2

TESTS AND MEASUREMENTS

FCC ID: JEH7710GA2

TEST AND MEASUREMENTS

2.1 Configuration of Tested System

The sample was tested per ANSI C63.4, Methods of Measurement from Low-Voltage
Electrical and Electronic Equipment in the Range of 9 kHz to 40 GHz (1992). Conducted
and radiated emissions data were taken with the test receiver or spectrum analyzer's
resolution bandwidth adjusted to 9 kHz and 120 kHz, respectively. All measurements are
peak unless stated otherwise. The video filter associated with the spectrum analyzer was
off throughout the evaluation process. Interconnecting cables were manipulated as
necessary to maximize emissions. Interconnecting cables were manipulated as necessary
to maximize emissions. A block diagram of the tested system is shown in Figure 1. Test
configuration photographs for spurious and digital device emissions are shown in Figure
2.

The system is functionally equivalent to a previously certified system which was issued on
02/10/1998 under FCC ID: JEH7710GA2. The Communications Base Station portion of
the product has been redesigned for cost reductions purposes. NCR is submitting this
application as a permissive change to the earlier certified system. Since no changes were
made to the computer portion of the system and it is typically located remotely, no further
testing was performed on the computer portion of the system. Due to the nature of the
changes, it was deemed necessary to perform a complete retest of the CBS II was
performed. The following is a complete list of the changes between the previously
approved 7710 CBS II and unit tested:

Mechanical:
• smaller, cost-reduced cabinetry
• reduced circuit board size

Digital/Power:
• changed digital signal processor from 40MHz Lucent 1610 to 50MHz Lucent
1620
• replaced discrete logic & Lucent V32 data pump with programmable logic
device
• added FLASH programmability
• changed analog to digital converter from Burr Brown DSP102JP to Analog
Devices AD73322
• communication connector changed from circular plastic to RJ45 type
• power connector changed from circular plastic to screw terminal type
• power & communication cable changed from shielded to unshielded type
• changed external AC/DC power supply from 60VDC to 24VDC output
• changed internal DC/DC converter from custom integrated type to separate
Power Trends PT6302G plus Burr Brown DCP010505P-U

FCC ID: JEH7710GA2

2.1 Configuration of Tested System – Cont.

RF:
• changed transmit connector from reverse thread TNC to reverse polarity TNC
• changed transmit antenna from quarter wave monopole to patch type
• 1.9GHz VCO changed from Varil VCO190-1900AT to Varil LVCO2522T
• 500MHz VCO changed from discrete Clapp type to Varil VCO190-550T
• power amp feedback loop allows firmware to configure output power level for
United States/Canada (2W EIRP) or Europe (500mW EIRP).
• changed power amp pre-driver from Motorola MRFIC2404 to HP
MGA851563
• changed power amp driver from Motorola MRFIC2403 to RF Microwave
RF2128
• removed power amp reverse power detect circuit
• replaced receiver input Wilkinson combiner with active combiner

FCC ID: JEH7710GA2

2.2 Test Facility

Testing was performed at US Tech's measurement facility at 3505 Francis Circle,
Alpharetta, GA. This site has been fully described and submitted to the FCC, and
accepted in their letter marked 31040/SIT. Additionally this site has also been fully
described and submitted to Industry Canada (IC), and has been approved under file
number IC2982.

2.3 Test Equipment

Table 2 describes test equipment used to evaluate this product.

2.4 Modifications

Various modifications were required by NCR in order to bring the EUT into compliance with
FCC Part 15, Class B Limits for the transmitter portion of the EUT and the Class A Digital
Device Requirements. Please refer to the attached letter (on the next two pages) from
NCR regarding these modifications.

FCC ID: JEH7710GA2

2651 Satellite Blvd.
Atlanta, GA 30136 USA
(770)623-7838 voice
(770)623-7495 fax
John.Crooks@AtlantaGA.NCR.COM e-mail

Tim Johnson
US Tech

July 14, 1999

Re: EMC Changes to NCR 7710 CBS II
Tim:
Attached is a list of changes NCR made to our 7710 CBS II (7710-7710) in order to pass EMC testing. NCR will
implement these changes before installing this product.
Digital Board Changes
1. Multipart fix:
a. Added 1.5” length of 0.5” wide copper tape to edge of digital board assembly near J3 & J4.
b. Soldered 330pf capacitor (item 61, NCR #006-3500623) between pins 1 and 2 of J3. Added
similar capacitor for J4.
c. Soldered 15pf capacitor (item 60, NCR #006-2004776) between copper tape and pin 1 of J3.
Added similar capacitor for J4.
d. Created solder short between copper tape and pin 2 of J3. Repeated for J4.
e. Added 2” length of EMI adhesive gasket material 006-8602526 to cabinet end plate to make
positive contact with copper tape on RF board.
2. Added 100pf capacitor (item 63, NCR #006-8602527) from J2 pin 6 to GNDI (isolated ground). Added a
similar capacitor from J2 pin 5 to GNDI (isolated ground).
RF Board Changes
1. Added six die-cut pieces of adhesive-backed RF absorbing foam (R&F Products type “RFLS”) to RF board
and chassis:

Assy NCR Part #
Item #
122 497-0413793
123 497-0413794
125 497-0414198
126 497-0414197
140 497-0414196
- 497-0414199
2. Changed receive antenna connectors J1, J2, J3, and J4 from plastic body type (NCR #006-8602180) to
metal body type (NCR #006-8602524).

FCC ID: JEH7710GA2

FIGURE 1

TEST CONFIGURATION

Dummy RS 485 Term.
Power Supply
9’U
110 VAC 60
> 10’ > 10’
Hz Source
U U

2@ 6’U 6’S TX Antenna
Power Transceiver
Supply

30’S 60’U

30’ S

Patch Patch
Antenna -1 Antenna -2 Converter

30’S 30’S 9’
U

Dish Dish Lap Top
Antenna -1 Antenna -2 Computer

Ferrite
Bead

Remote 6’U
Location

AC Adapter

6’U
110 VAC
60 Hz
Source

FCC ID: JEH7710GA2

Test Date: 5/18/99
UST Project: 99-381
Customer: NCR Corporation
Model: 7710

FIGURE 2b

Photograph(s) for Conducted Emissions

Final Photographs are not available as they were lost during a hard-drive failure.

FCC ID: JEH7710GA2

TABLE 1

EUT and Peripherals

PERIPHERAL MODEL SERIAL FCC ID: CABLES
MANU. NUMBER NUMBER P/D
Transceiver 7710 None >10’ U to Dummy
NCR CBS II (Pending) Power Load
(EUT) >10’ U to
RS 485 Term.

Patch Antenna (TX) None None None 6’ S
Macom
(EUT)
Power Supply S4M04-3 9847 None 2@ 6’ U
Enterprise, Co. Lead Year 9’ U 110 VAC 60
(EUT) Hz
Patch Antenna (1) None 33958015- None 30’ S
(RX) 00489819
Macom
(EUT)
Patch Antenna (2) None 33958015- None 30’ S
(RX) 00489829
Macom
(EUT)
Dish Antenna (1) None 9801/008 None 30’ S
(RX)
NCR
(EUT)
Dish Antenna (2) None 9746/008 None 30’ S
(RX)
NCR
(EUT)
Converter IC107A 94096272629 None 60’ U
RS 232/422/485
Black Box
Lap Top Computer Globalyst 250 15-29240502 83DP52S 9’ U
AT & T 6’ U
AC Adapter ADP71 4801537GA None 6’U
AT & T

FCC ID: JEH7710GA2

TABLE 2
TEST INSTRUMENTS
TYPE MANUFACTURER MODEL SN.
-
SPECTRUM ANALYZER HEWLETT-PACKARD 8593E 3205A00124
SPECTRUM ANALYZER HEWLETT-PACKARD 8558B 2332A09900
S A DISPLAY HEWLETT-PACKARD 853A 2404A02387
COMB GENERATOR HEWLETT-PACKARD 8406A 1632A01519
RF PREAMP HEWLETT-PACKARD 8447D 1937A03355
RF PREAMP HEWLETT-PACKARD 8449B 3008A00480
HORN ANTENNA EMCO 3115 3723

HORN ANTENNA EMCO 3116 9505-2255
BICONICAL ANTENNA EMCO 3110 9307-1431
LOG PERIODIC EMCO 3146 9110-3600
ANTENNA
BILOG CHASE CBL6112A 2238
LISN SOLAR ELE. 8012 865577
LISN SOLAR ELE. 8028 910494
LISN SOLAR ELE. 8028 910495
THERMOMETER FLUKE 52 5215250
MULTIMETER FLUKE 85 53710469
FUNCTION TEKTRONIX CFG250 CFG250TW1505
GENERATOR 9
PLOTTER HEWLETT-PACKARD 7475A 2325A65394

FCC ID: JEH7710GA2

2.6 Antenna Description (Paragraph 15.203)

An intentional radiator shall be designed to ensure that no transmit antenna other than that
furnished by the responsible party shall be used with the device. The use of a permanently
attached antenna or of an antenna that uses a unique coupling to the intentional radiator
shall be considered sufficient to comply with the provisions of this section.

The Model NCR Corporation 7710 incorporates the following antennas:

Manu- Type of
Function Type Model # Gain
facturer Connector
reverse
passive NCR 497-0414029
Transmit Macom 4.0 dBi polarity SMA
patch Macom 3395-8015-0083
jack
patch with NCR 497-0414028
Receive Macom 4.0 dBi BNC jack
LNA Macom 3395-8015-0084
patch with NCR 497-0408705
Receive Macom 4.0 dBi BNC jack
LNA Macom 3395-8015-0048
quarter wave
Receive monopole NCR 230-0135210 NCR 5.5 dBi BNC jack
with LNA

Additionally, due to the unique nature of this system, this system requires professional
installation.

FCC ID: JEH7710GA2

2.7 Peak power within the band 2400 – 2483.5 GHz per FCC Section 15.247(b)

Peak power within the band 2400-2483.5 GHz has been measured with a spectrum
analyzer by connecting the spectrum analyzer directly via a short cable to the antenna
output terminals or across the antenna leads on the PCB as specified by the manufacturer.
The spectrum analyzer was set for a 50 Ω impedance with the VBW > RBW 6 dB
bandwidth. The results of the measurements are given in Table 3 and Figure 3a through
Figure 3c.

The EUT did not incorporate any antennas of directional gain greater than 6 dBi, therefore
the output power has not been reduced as required by 15.247(b)(3).

FCC ID: JEH7710GA2

TABLE 3
PEAK POWER OUTPUT

Test Date: 6/9/99
UST Project: 99-381
Customer: NCR Corporation
Model: 7710

Frequency of Measurement Measurement FCC Limit
Fundamental (dBm)* (Watt)* (Watt)
(MHz)

2400.0 28.0 0.631 1.0

2440.0 27.8 602.6 1.0

2483.5 26.1 407.4 1.0

* Measurement includes 0.6 db cable loss
(loss not known for special connector used)

Tester
Signature: Name: Tim R. Johnson

FCC ID: JEH7710GA2

Document Created: 2001-06-11 08:11:19
Document Modified: 2001-06-11 08:11:19

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